Global Patent Index - EP 0553938 A2

EP 0553938 A2 19930804 - Recording device and reproducing device.

Title (en)

Recording device and reproducing device.

Title (de)

Aufzeichnungsgerät und Wiedergabegerät.

Title (fr)

Appareil d'enregistrement et appareil de reproduction.

Publication

EP 0553938 A2 19930804 (EN)

Application

EP 93200795 A 19880628

Priority

  • EP 88305862 A 19880628
  • JP 19186287 A 19870731
  • JP 19186387 A 19870731

Abstract (en)

A device is provided for recording and/or reproducing information. It comprises a probe electrode (102), a recording medium (101) disposed opposite to the probe electrode (102) so that a tunnel current can flow when a voltage is applied therebetween and either one or both of (a) means (112) for applying a writing voltage between the probe electrode and the medium to record information thereon and (b) means (112) for applying a reading voltage between the probe electrode and the medium to detect information recorded thereon. The medium comprises organic molecules which have both a group containing only sigma electron levels and a group containing π electron levels. It may comprise a monomolecular film of an organic compound or a film built up from a plurality of monomolecular layers of an organic compound which may be, for example, a dye.

IPC 1-7

G11B 9/00

IPC 8 full level

G11B 7/244 (2006.01); G11B 7/248 (2006.01); G11B 7/249 (2013.01); G11B 9/00 (2006.01); G11B 9/04 (2006.01); G11B 9/08 (2006.01); G11B 9/10 (2006.01); G11B 11/00 (2006.01); G11B 11/08 (2006.01); G11B 11/12 (2006.01); G11C 11/21 (2006.01)

CPC (source: EP)

B82Y 10/00 (2013.01); G11B 7/244 (2013.01); G11B 7/248 (2013.01); G11B 7/249 (2013.01); G11B 9/00 (2013.01); G11B 9/04 (2013.01); G11B 9/08 (2013.01); G11B 9/10 (2013.01); G11B 9/14 (2013.01); G11B 9/1409 (2013.01); G11B 9/1418 (2013.01); G11B 9/1436 (2013.01); G11B 9/1463 (2013.01); G11B 9/149 (2013.01); G11B 11/007 (2013.01); G11B 11/08 (2013.01); G11B 11/12 (2013.01)

Designated contracting state (EPC)

AT BE CH ES GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0551965 A2 19930721; EP 0551965 A3 19940112; EP 0551965 B1 19970820; AT E157190 T1 19970915; AT E170658 T1 19980915; AT E177241 T1 19990315; AT E99445 T1 19940115; CA 1336922 C 19950905; EP 0305033 A2 19890301; EP 0305033 A3 19890322; EP 0305033 B1 19931229; EP 0553937 A2 19930804; EP 0553937 A3 19930922; EP 0553937 B1 19990303; EP 0553938 A2 19930804; EP 0553938 A3 19930915; EP 0553938 B1 19980902; ES 2047549 T3 19940301

DOCDB simple family (application)

EP 93200796 A 19880628; AT 88305862 T 19880628; AT 93200794 T 19880628; AT 93200795 T 19880628; AT 93200796 T 19880628; CA 572934 A 19880725; EP 88305862 A 19880628; EP 93200794 A 19880628; EP 93200795 A 19880628; ES 88305862 T 19880628